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  <div class="headertitle">
<div class="title">qwt_point_mapper.cpp</div>  </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Qwt Widget Library</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (C) 1997   Josef Wilgen</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Copyright (C) 2002   Uwe Rathmann</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * This library is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *****************************************************************************/</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160; </div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#include &quot;qwt_point_mapper.h&quot;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor">#include &quot;qwt_scale_map.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &quot;qwt_pixel_matrix.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &quot;qwt_series_data.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &quot;qwt_math.h&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160; </div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &lt;qpolygon.h&gt;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &lt;qimage.h&gt;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#include &lt;qpen.h&gt;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &lt;qpainter.h&gt;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160; </div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#include &lt;qthread.h&gt;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &lt;qfuture.h&gt;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include &lt;qtconcurrentrun.h&gt;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160; </div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#if !defined( QT_NO_QFUTURE )</span></div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#define QWT_USE_THREADS 1</span></div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160; </div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="keyword">static</span> QRectF qwtInvalidRect( 0.0, 0.0, -1.0, -1.0 );</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160; </div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> qwtRoundValue( <span class="keywordtype">double</span> value )</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;{</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;    <span class="keywordflow">return</span> qRound( value );</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;}</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160; </div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">double</span> qwtRoundValueF( <span class="keywordtype">double</span> value )</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;{</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor">#if 1</span></div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;    <span class="comment">// MS Windows and at least IRIX does not have C99&#39;s nearbyint() function</span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;    <span class="keywordflow">return</span> ( value &gt;= 0.0 ) ? std::floor( value + 0.5 ) : std::ceil( value - 0.5 );</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;    <span class="keywordflow">return</span> nearbyint( value );</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;}</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160; </div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="keyword">static</span> Qt::Orientation qwtProbeOrientation(</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series, <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to )</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;{</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    <span class="keywordflow">if</span> ( to - from &lt; 20 )</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    {</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;        <span class="comment">// not enough points to &quot;have an orientation&quot;</span></div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;        <span class="keywordflow">return</span> Qt::Horizontal;</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    }</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160; </div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> x0 = series-&gt;<a class="code" href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">sample</a>( from ).x();</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">double</span> xn = series-&gt;<a class="code" href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">sample</a>( to ).x();</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160; </div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    <span class="keywordflow">if</span> ( x0 == xn )</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;        <span class="keywordflow">return</span> Qt::Vertical;</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160; </div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> step = ( to - from ) / 10;</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">bool</span> isIncreasing = xn &gt; x0;</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160; </div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    <span class="keywordtype">double</span> x1 = x0;</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = from + step; i &lt; to; i += step )</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    {</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">double</span> x2 = series-&gt;<a class="code" href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">sample</a>( i ).x();</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        <span class="keywordflow">if</span> ( x2 != x1 )</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        {</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;            <span class="keywordflow">if</span> ( ( x2 &gt; x1 ) != isIncreasing )</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;                <span class="keywordflow">return</span> Qt::Vertical;</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;        }</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160; </div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;        x1 = x2;</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    }</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160; </div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    <span class="keywordflow">return</span> Qt::Horizontal;</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;}</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160; </div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;<span class="keyword">namespace</span></div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;{</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    <span class="keyword">template</span>&lt; <span class="keyword">class</span> Polygon, <span class="keyword">class</span> Po<span class="keywordtype">int</span> &gt;</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    <span class="keyword">class </span>QwtPolygonQuadrupelX</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    {</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;      <span class="keyword">public</span>:</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;        <span class="keyword">inline</span> <span class="keywordtype">void</span> start( <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y )</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;        {</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;            x0 = x;</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;            y1 = yMin = yMax = y2 = y;</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        }</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160; </div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;        <span class="keyword">inline</span> <span class="keywordtype">bool</span> append( <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y )</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;        {</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;            <span class="keywordflow">if</span> ( x0 != x )</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;                <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160; </div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;            <span class="keywordflow">if</span> ( y &lt; yMin )</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;                yMin = y;</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;            <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( y &gt; yMax )</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;                yMax = y;</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160; </div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;            y2 = y;</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160; </div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;            <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;        }</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160; </div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;        <span class="keyword">inline</span> <span class="keywordtype">void</span> flush( Polygon&amp; polyline )</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;        {</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;            appendTo( y1, polyline );</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160; </div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;            <span class="keywordflow">if</span> ( y2 &gt; y1 )</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;                qSwap( yMin, yMax );</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160; </div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;            <span class="keywordflow">if</span> ( yMax != y1 )</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;                appendTo( yMax, polyline );</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160; </div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;            <span class="keywordflow">if</span> ( yMin != yMax )</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;                appendTo( yMin, polyline );</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160; </div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;            <span class="keywordflow">if</span> ( y2 != yMin )</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;                appendTo( y2, polyline );</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;        }</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160; </div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;      <span class="keyword">private</span>:</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;        <span class="keyword">inline</span> <span class="keywordtype">void</span> appendTo( <span class="keywordtype">int</span> y, Polygon&amp; polyline )</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;        {</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;            polyline += Point( x0, y );</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;        }</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160; </div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;      <span class="keyword">private</span>:</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;        <span class="keywordtype">int</span> x0, y1, yMin, yMax, y2;</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    };</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160; </div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    <span class="keyword">template</span>&lt; <span class="keyword">class</span> Polygon, <span class="keyword">class</span> Po<span class="keywordtype">int</span> &gt;</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    <span class="keyword">class </span>QwtPolygonQuadrupelY</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    {</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;      <span class="keyword">public</span>:</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;        <span class="keyword">inline</span> <span class="keywordtype">void</span> start( <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y )</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;        {</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;            y0 = y;</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;            x1 = xMin = xMax = x2 = x;</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;        }</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160; </div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;        <span class="keyword">inline</span> <span class="keywordtype">bool</span> append( <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y )</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;        {</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;            <span class="keywordflow">if</span> ( y0 != y )</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;                <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160; </div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;            <span class="keywordflow">if</span> ( x &lt; xMin )</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;                xMin = x;</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;            <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( x &gt; xMax )</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;                xMax = x;</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160; </div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;            x2 = x;</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160; </div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;            <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;        }</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160; </div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;        <span class="keyword">inline</span> <span class="keywordtype">void</span> flush( Polygon&amp; polyline )</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;        {</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;            appendTo( x1, polyline );</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160; </div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;            <span class="keywordflow">if</span> ( x2 &gt; x1 )</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;                qSwap( xMin, xMax );</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160; </div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;            <span class="keywordflow">if</span> ( xMax != x1 )</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;                appendTo( xMax, polyline );</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160; </div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;            <span class="keywordflow">if</span> ( xMin != xMax )</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;                appendTo( xMin, polyline );</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160; </div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;            <span class="keywordflow">if</span> ( x2 != xMin )</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;                appendTo( x2, polyline );</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;        }</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160; </div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;      <span class="keyword">private</span>:</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;        <span class="keyword">inline</span> <span class="keywordtype">void</span> appendTo( <span class="keywordtype">int</span> x, Polygon&amp; polyline )</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;        {</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;            polyline += Point( x, y0 );</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;        }</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160; </div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;        <span class="keywordtype">int</span> y0, x1, xMin, xMax, x2;</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;    };</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;}</div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160; </div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">class</span> Polygon, <span class="keyword">class</span> Po<span class="keywordtype">int</span>, <span class="keyword">class</span> PolygonQuadrupel &gt;</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;<span class="keyword">static</span> Polygon qwtMapPointsQuad( <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series, <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to )</div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;{</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;    <span class="keyword">const</span> QPointF sample0 = series-&gt;<a class="code" href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">sample</a>( from );</div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160; </div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;    PolygonQuadrupel q;</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;    q.start( qwtRoundValue( xMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample0.x() ) ),</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;        qwtRoundValue( yMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample0.y() ) ) );</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160; </div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;    Polygon polyline;</div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;    <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = from; i &lt;= to; i++ )</div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;    {</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;        <span class="keyword">const</span> QPointF sample = series-&gt;<a class="code" href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">sample</a>( i );</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160; </div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> x = qwtRoundValue( xMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample.x() ) );</div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> y = qwtRoundValue( yMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample.y() ) );</div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160; </div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;        <span class="keywordflow">if</span> ( !q.append( x, y ) )</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;        {</div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;            q.flush( polyline );</div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;            q.start( x, y );</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;        }</div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;    }</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;    q.flush( polyline );</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160; </div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;    <span class="keywordflow">return</span> polyline;</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;}</div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160; </div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">class</span> Polygon, <span class="keyword">class</span> Po<span class="keywordtype">int</span>, <span class="keyword">class</span> PolygonQuadrupel &gt;</div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;<span class="keyword">static</span> Polygon qwtMapPointsQuad( <span class="keyword">const</span> Polygon&amp; polyline )</div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;{</div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> numPoints = polyline.size();</div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160; </div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;    <span class="keywordflow">if</span> ( numPoints &lt; 3 )</div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;        <span class="keywordflow">return</span> polyline;</div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160; </div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;    <span class="keyword">const</span> Point* points = polyline.constData();</div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160; </div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;    Polygon polylineXY;</div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160; </div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;    PolygonQuadrupel q;</div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;    q.start( points[0].x(), points[0].y() );</div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160; </div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;    <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i &lt; numPoints; i++ )</div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;    {</div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> x = points[i].x();</div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> y = points[i].y();</div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160; </div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;        <span class="keywordflow">if</span> ( !q.append( x, y ) )</div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;        {</div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;            q.flush( polylineXY );</div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;            q.start( x, y );</div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;        }</div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;    }</div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;    q.flush( polylineXY );</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160; </div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;    <span class="keywordflow">return</span> polylineXY;</div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;}</div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160; </div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160; </div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">class</span> Polygon, <span class="keyword">class</span> Po<span class="keywordtype">int</span> &gt;</div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;<span class="keyword">static</span> Polygon qwtMapPointsQuad( <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series, <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to )</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;{</div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;    Polygon polyline;</div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;    <span class="keywordflow">if</span> ( from &gt; to )</div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;        <span class="keywordflow">return</span> polyline;</div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160; </div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;    <span class="comment">/*</span></div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;<span class="comment">        probing some values, to decide if it is better</span></div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;<span class="comment">        to start with x or y coordinates</span></div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;    <span class="keyword">const</span> Qt::Orientation orientation = qwtProbeOrientation( series, from, to );</div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160; </div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;    <span class="keywordflow">if</span> ( orientation == Qt::Horizontal )</div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;    {</div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;        polyline = qwtMapPointsQuad&lt; Polygon, Point,</div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;            QwtPolygonQuadrupelY&lt; Polygon, Point &gt; &gt;( xMap, yMap, series, from, to );</div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160; </div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;        polyline = qwtMapPointsQuad&lt; Polygon, Point,</div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;            QwtPolygonQuadrupelX&lt; Polygon, Point &gt; &gt;( polyline );</div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;    }</div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;    {</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;        polyline = qwtMapPointsQuad&lt; Polygon, Point,</div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;            QwtPolygonQuadrupelX&lt; Polygon, Point &gt; &gt;( xMap, yMap, series, from, to );</div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160; </div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;        polyline = qwtMapPointsQuad&lt; Polygon, Point,</div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;            QwtPolygonQuadrupelY&lt; Polygon, Point &gt; &gt;( polyline );</div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;    }</div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160; </div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;    <span class="keywordflow">return</span> polyline;</div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;}</div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160; </div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;<span class="comment">// Helper class to work around the 5 parameters</span></div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;<span class="comment">// limitation of QtConcurrent::run()</span></div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;<span class="keyword">class </span>QwtDotsCommand</div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;{</div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series;</div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;    <span class="keywordtype">int</span> from;</div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;    <span class="keywordtype">int</span> to;</div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;    QRgb rgb;</div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;};</div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160; </div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;<span class="keyword">static</span> <span class="keywordtype">void</span> qwtRenderDots(</div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;    <span class="keyword">const</span> QwtDotsCommand&amp; command, <span class="keyword">const</span> QPoint&amp; pos, QImage* image )</div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;{</div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;    <span class="keyword">const</span> QRgb rgb = command.rgb;</div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;    QRgb* bits = <span class="keyword">reinterpret_cast&lt;</span> QRgb* <span class="keyword">&gt;</span>( image-&gt;bits() );</div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160; </div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> w = image-&gt;width();</div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> h = image-&gt;height();</div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160; </div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> x0 = pos.x();</div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> y0 = pos.y();</div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160; </div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;    <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = command.from; i &lt;= command.to; i++ )</div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;    {</div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;        <span class="keyword">const</span> QPointF sample = command.series-&gt;sample( i );</div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160; </div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> x = <span class="keyword">static_cast&lt;</span> <span class="keywordtype">int</span> <span class="keyword">&gt;</span>( xMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample.x() ) + 0.5 ) - x0;</div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> y = <span class="keyword">static_cast&lt;</span> <span class="keywordtype">int</span> <span class="keyword">&gt;</span>( yMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample.y() ) + 0.5 ) - y0;</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160; </div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;        <span class="keywordflow">if</span> ( x &gt;= 0 &amp;&amp; x &lt; w &amp;&amp; y &gt;= 0 &amp;&amp; y &lt; h )</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;            bits[ y * w + x ] = rgb;</div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;    }</div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;}</div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160; </div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;<span class="comment">// some functors, so that the compile can inline</span></div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;<span class="keyword">struct </span>QwtRoundI</div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;{</div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;    <span class="keyword">inline</span> <span class="keywordtype">int</span> operator()( <span class="keywordtype">double</span> value )<span class="keyword"> const</span></div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;<span class="keyword">    </span>{</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;        <span class="keywordflow">return</span> qwtRoundValue( value );</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;    }</div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;};</div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160; </div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;<span class="keyword">struct </span>QwtRoundF</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;{</div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;    <span class="keyword">inline</span> <span class="keywordtype">double</span> operator()( <span class="keywordtype">double</span> value )<span class="keyword"> const</span></div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;<span class="keyword">    </span>{</div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;        <span class="keywordflow">return</span> qwtRoundValueF( value );</div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;    }</div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;};</div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160; </div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;<span class="keyword">struct </span>QwtNoRoundF</div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;{</div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;    <span class="keyword">inline</span> <span class="keywordtype">double</span> operator()( <span class="keywordtype">double</span> value )<span class="keyword"> const</span></div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;<span class="keyword">    </span>{</div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;        <span class="keywordflow">return</span> value;</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;    }</div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;};</div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160; </div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;<span class="comment">// mapping points without any filtering - beside checking</span></div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;<span class="comment">// the bounding rectangle</span></div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160; </div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">class</span> Polygon, <span class="keyword">class</span> Po<span class="keywordtype">int</span>, <span class="keyword">class</span> Round &gt;</div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> Polygon qwtToPoints(</div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;    <span class="keyword">const</span> QRectF&amp; boundingRect,</div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series,</div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;    <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to, Round round )</div>
<div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;{</div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;    Polygon polyline( to - from + 1 );</div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;    Point* points = polyline.data();</div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160; </div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;    <span class="keywordtype">int</span> numPoints = 0;</div>
<div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160; </div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;    <span class="keywordflow">if</span> ( boundingRect.isValid() )</div>
<div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;    {</div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;        <span class="comment">// iterating over all values</span></div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;        <span class="comment">// filtering out all points outside of</span></div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;        <span class="comment">// the bounding rectangle</span></div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160; </div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;        <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = from; i &lt;= to; i++ )</div>
<div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;        {</div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;            <span class="keyword">const</span> QPointF sample = series-&gt;<a class="code" href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">sample</a>( i );</div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160; </div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> x = xMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample.x() );</div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> y = yMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample.y() );</div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160; </div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;            <span class="keywordflow">if</span> ( boundingRect.contains( x, y ) )</div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;            {</div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;                points[ numPoints ].rx() = round( x );</div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;                points[ numPoints ].ry() = round( y );</div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160; </div>
<div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;                numPoints++;</div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;            }</div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;        }</div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160; </div>
<div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;        polyline.resize( numPoints );</div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;    }</div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;    {</div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;        <span class="comment">// simply iterating over all values</span></div>
<div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;        <span class="comment">// without any filtering</span></div>
<div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160; </div>
<div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;        <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = from; i &lt;= to; i++ )</div>
<div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;        {</div>
<div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;            <span class="keyword">const</span> QPointF sample = series-&gt;<a class="code" href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">sample</a>( i );</div>
<div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160; </div>
<div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> x = xMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample.x() );</div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span> y = yMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample.y() );</div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160; </div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;            points[ numPoints ].rx() = round( x );</div>
<div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;            points[ numPoints ].ry() = round( y );</div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160; </div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;            numPoints++;</div>
<div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;        }</div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;    }</div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160; </div>
<div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;    <span class="keywordflow">return</span> polyline;</div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;}</div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160; </div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> QPolygon qwtToPointsI(</div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;    <span class="keyword">const</span> QRectF&amp; boundingRect,</div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series,</div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;    <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to )</div>
<div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;{</div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;    <span class="keywordflow">return</span> qwtToPoints&lt; QPolygon, QPoint &gt;(</div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;        boundingRect, xMap, yMap, series, from, to, QwtRoundI() );</div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;}</div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160; </div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">class</span> Round &gt;</div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> QPolygonF qwtToPointsF(</div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;    <span class="keyword">const</span> QRectF&amp; boundingRect,</div>
<div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series,</div>
<div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;    <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to, Round round )</div>
<div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;{</div>
<div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;    <span class="keywordflow">return</span> qwtToPoints&lt; QPolygonF, QPointF &gt;(</div>
<div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;        boundingRect, xMap, yMap, series, from, to, round );</div>
<div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;}</div>
<div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160; </div>
<div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;<span class="comment">// Mapping points with filtering out consecutive</span></div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;<span class="comment">// points mapped to the same position</span></div>
<div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160; </div>
<div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">class</span> Polygon, <span class="keyword">class</span> Po<span class="keywordtype">int</span>, <span class="keyword">class</span> Round &gt;</div>
<div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> Polygon qwtToPolylineFiltered(</div>
<div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series,</div>
<div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;    <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to, Round round )</div>
<div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160;{</div>
<div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;    <span class="comment">// in curves with many points consecutive points</span></div>
<div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;    <span class="comment">// are often mapped to the same position. As this might</span></div>
<div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;    <span class="comment">// result in empty lines ( or symbols hidden by others )</span></div>
<div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;    <span class="comment">// we try to filter them out</span></div>
<div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160; </div>
<div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;    Polygon polyline( to - from + 1 );</div>
<div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;    Point* points = polyline.data();</div>
<div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160; </div>
<div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;    <span class="keyword">const</span> QPointF sample0 = series-&gt;<a class="code" href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">sample</a>( from );</div>
<div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160; </div>
<div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;    points[0].rx() = round( xMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample0.x() ) );</div>
<div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;    points[0].ry() = round( yMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample0.y() ) );</div>
<div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160; </div>
<div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;    <span class="keywordtype">int</span> pos = 0;</div>
<div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;    <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = from + 1; i &lt;= to; i++ )</div>
<div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160;    {</div>
<div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;        <span class="keyword">const</span> QPointF sample = series-&gt;<a class="code" href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">sample</a>( i );</div>
<div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160; </div>
<div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;        <span class="keyword">const</span> Point p( round( xMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample.x() ) ),</div>
<div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;            round( yMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample.y() ) ) );</div>
<div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160; </div>
<div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;        <span class="keywordflow">if</span> ( points[pos] != p )</div>
<div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;            points[++pos] = p;</div>
<div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160;    }</div>
<div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160; </div>
<div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;    polyline.resize( pos + 1 );</div>
<div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;    <span class="keywordflow">return</span> polyline;</div>
<div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;}</div>
<div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160; </div>
<div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> QPolygon qwtToPolylineFilteredI(</div>
<div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series,</div>
<div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;    <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to )</div>
<div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160;{</div>
<div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;    <span class="keywordflow">return</span> qwtToPolylineFiltered&lt; QPolygon, QPoint &gt;(</div>
<div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160;        xMap, yMap, series, from, to, QwtRoundI() );</div>
<div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;}</div>
<div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160; </div>
<div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">class</span> Round &gt;</div>
<div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> QPolygonF qwtToPolylineFilteredF(</div>
<div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series,</div>
<div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;    <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to, Round round )</div>
<div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;{</div>
<div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;    <span class="keywordflow">return</span> qwtToPolylineFiltered&lt; QPolygonF, QPointF &gt;(</div>
<div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160;        xMap, yMap, series, from, to, round );</div>
<div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160;}</div>
<div class="line"><a name="l00480"></a><span class="lineno">  480</span>&#160; </div>
<div class="line"><a name="l00481"></a><span class="lineno">  481</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">class</span> Polygon, <span class="keyword">class</span> Po<span class="keywordtype">int</span> &gt;</div>
<div class="line"><a name="l00482"></a><span class="lineno">  482</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> Polygon qwtToPointsFiltered(</div>
<div class="line"><a name="l00483"></a><span class="lineno">  483</span>&#160;    <span class="keyword">const</span> QRectF&amp; boundingRect,</div>
<div class="line"><a name="l00484"></a><span class="lineno">  484</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series, <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to )</div>
<div class="line"><a name="l00486"></a><span class="lineno">  486</span>&#160;{</div>
<div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160;    <span class="comment">// F.e. in scatter plots ( no connecting lines ) we</span></div>
<div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;    <span class="comment">// can sort out all duplicates ( not only consecutive points )</span></div>
<div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160; </div>
<div class="line"><a name="l00490"></a><span class="lineno">  490</span>&#160;    Polygon polygon( to - from + 1 );</div>
<div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160;    Point* points = polygon.data();</div>
<div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160; </div>
<div class="line"><a name="l00493"></a><span class="lineno">  493</span>&#160;    <a class="code" href="class_qwt_pixel_matrix.html">QwtPixelMatrix</a> pixelMatrix( boundingRect.toAlignedRect() );</div>
<div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160; </div>
<div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;    <span class="keywordtype">int</span> numPoints = 0;</div>
<div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160;    <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = from; i &lt;= to; i++ )</div>
<div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;    {</div>
<div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160;        <span class="keyword">const</span> QPointF sample = series-&gt;<a class="code" href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">sample</a>( i );</div>
<div class="line"><a name="l00499"></a><span class="lineno">  499</span>&#160; </div>
<div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> x = qwtRoundValue( xMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample.x() ) );</div>
<div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> y = qwtRoundValue( yMap.<a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">transform</a>( sample.y() ) );</div>
<div class="line"><a name="l00502"></a><span class="lineno">  502</span>&#160; </div>
<div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160;        <span class="keywordflow">if</span> ( pixelMatrix.testAndSetPixel( x, y, <span class="keyword">true</span> ) == <span class="keyword">false</span> )</div>
<div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;        {</div>
<div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;            points[ numPoints ].rx() = x;</div>
<div class="line"><a name="l00506"></a><span class="lineno">  506</span>&#160;            points[ numPoints ].ry() = y;</div>
<div class="line"><a name="l00507"></a><span class="lineno">  507</span>&#160; </div>
<div class="line"><a name="l00508"></a><span class="lineno">  508</span>&#160;            numPoints++;</div>
<div class="line"><a name="l00509"></a><span class="lineno">  509</span>&#160;        }</div>
<div class="line"><a name="l00510"></a><span class="lineno">  510</span>&#160;    }</div>
<div class="line"><a name="l00511"></a><span class="lineno">  511</span>&#160; </div>
<div class="line"><a name="l00512"></a><span class="lineno">  512</span>&#160;    polygon.resize( numPoints );</div>
<div class="line"><a name="l00513"></a><span class="lineno">  513</span>&#160;    <span class="keywordflow">return</span> polygon;</div>
<div class="line"><a name="l00514"></a><span class="lineno">  514</span>&#160;}</div>
<div class="line"><a name="l00515"></a><span class="lineno">  515</span>&#160; </div>
<div class="line"><a name="l00516"></a><span class="lineno">  516</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> QPolygon qwtToPointsFilteredI(</div>
<div class="line"><a name="l00517"></a><span class="lineno">  517</span>&#160;    <span class="keyword">const</span> QRectF&amp; boundingRect,</div>
<div class="line"><a name="l00518"></a><span class="lineno">  518</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00519"></a><span class="lineno">  519</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series, <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to )</div>
<div class="line"><a name="l00520"></a><span class="lineno">  520</span>&#160;{</div>
<div class="line"><a name="l00521"></a><span class="lineno">  521</span>&#160;    <span class="keywordflow">return</span> qwtToPointsFiltered&lt; QPolygon, QPoint &gt;(</div>
<div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;        boundingRect, xMap, yMap, series, from, to );</div>
<div class="line"><a name="l00523"></a><span class="lineno">  523</span>&#160;}</div>
<div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160; </div>
<div class="line"><a name="l00525"></a><span class="lineno">  525</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> QPolygonF qwtToPointsFilteredF(</div>
<div class="line"><a name="l00526"></a><span class="lineno">  526</span>&#160;    <span class="keyword">const</span> QRectF&amp; boundingRect,</div>
<div class="line"><a name="l00527"></a><span class="lineno">  527</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00528"></a><span class="lineno">  528</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series, <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to )</div>
<div class="line"><a name="l00529"></a><span class="lineno">  529</span>&#160;{</div>
<div class="line"><a name="l00530"></a><span class="lineno">  530</span>&#160;    <span class="keywordflow">return</span> qwtToPointsFiltered&lt; QPolygonF, QPointF &gt;(</div>
<div class="line"><a name="l00531"></a><span class="lineno">  531</span>&#160;        boundingRect, xMap, yMap, series, from, to );</div>
<div class="line"><a name="l00532"></a><span class="lineno">  532</span>&#160;}</div>
<div class="line"><a name="l00533"></a><span class="lineno">  533</span>&#160; </div>
<div class="line"><a name="l00534"></a><span class="lineno">  534</span>&#160;<span class="keyword">class </span>QwtPointMapper::PrivateData</div>
<div class="line"><a name="l00535"></a><span class="lineno">  535</span>&#160;{</div>
<div class="line"><a name="l00536"></a><span class="lineno">  536</span>&#160;  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00537"></a><span class="lineno">  537</span>&#160;    PrivateData()</div>
<div class="line"><a name="l00538"></a><span class="lineno">  538</span>&#160;        : <a class="code" href="class_qwt_point_mapper.html#a22846085780856a6ca36776d387d5b21">boundingRect</a>( qwtInvalidRect )</div>
<div class="line"><a name="l00539"></a><span class="lineno">  539</span>&#160;    {</div>
<div class="line"><a name="l00540"></a><span class="lineno">  540</span>&#160;    }</div>
<div class="line"><a name="l00541"></a><span class="lineno">  541</span>&#160; </div>
<div class="line"><a name="l00542"></a><span class="lineno">  542</span>&#160;    QRectF <a class="code" href="class_qwt_point_mapper.html#a22846085780856a6ca36776d387d5b21">boundingRect</a>;</div>
<div class="line"><a name="l00543"></a><span class="lineno">  543</span>&#160;    <a class="code" href="class_qwt_point_mapper.html#aba6206c8750314c543f0e3b771ae1641">QwtPointMapper::TransformationFlags</a> <a class="code" href="class_qwt_point_mapper.html#a3bed903e8aeaebd8153c6c75121bfb01">flags</a>;</div>
<div class="line"><a name="l00544"></a><span class="lineno">  544</span>&#160;};</div>
<div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160; </div>
<div class="line"><a name="l00547"></a><span class="lineno"><a class="line" href="class_qwt_point_mapper.html#a6e5eabb9c1af9b035023376fa2e1c472">  547</a></span>&#160;<a class="code" href="class_qwt_point_mapper.html#a6e5eabb9c1af9b035023376fa2e1c472">QwtPointMapper::QwtPointMapper</a>()</div>
<div class="line"><a name="l00548"></a><span class="lineno">  548</span>&#160;{</div>
<div class="line"><a name="l00549"></a><span class="lineno">  549</span>&#160;    m_data = <span class="keyword">new</span> PrivateData();</div>
<div class="line"><a name="l00550"></a><span class="lineno">  550</span>&#160;}</div>
<div class="line"><a name="l00551"></a><span class="lineno">  551</span>&#160; </div>
<div class="line"><a name="l00553"></a><span class="lineno"><a class="line" href="class_qwt_point_mapper.html#aabe6a70dae5784e8b67f4527c51e0c09">  553</a></span>&#160;<a class="code" href="class_qwt_point_mapper.html#aabe6a70dae5784e8b67f4527c51e0c09">QwtPointMapper::~QwtPointMapper</a>()</div>
<div class="line"><a name="l00554"></a><span class="lineno">  554</span>&#160;{</div>
<div class="line"><a name="l00555"></a><span class="lineno">  555</span>&#160;    <span class="keyword">delete</span> m_data;</div>
<div class="line"><a name="l00556"></a><span class="lineno">  556</span>&#160;}</div>
<div class="line"><a name="l00557"></a><span class="lineno">  557</span>&#160; </div>
<div class="line"><a name="l00564"></a><span class="lineno"><a class="line" href="class_qwt_point_mapper.html#ab556bd339cca487f25e2d894c51abe85">  564</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_point_mapper.html#ab556bd339cca487f25e2d894c51abe85">QwtPointMapper::setFlags</a>( <a class="code" href="class_qwt_point_mapper.html#aba6206c8750314c543f0e3b771ae1641">TransformationFlags</a> flags )</div>
<div class="line"><a name="l00565"></a><span class="lineno">  565</span>&#160;{</div>
<div class="line"><a name="l00566"></a><span class="lineno">  566</span>&#160;    m_data-&gt;flags = <a class="code" href="class_qwt_point_mapper.html#a3bed903e8aeaebd8153c6c75121bfb01">flags</a>;</div>
<div class="line"><a name="l00567"></a><span class="lineno">  567</span>&#160;}</div>
<div class="line"><a name="l00568"></a><span class="lineno">  568</span>&#160; </div>
<div class="line"><a name="l00573"></a><span class="lineno"><a class="line" href="class_qwt_point_mapper.html#a3bed903e8aeaebd8153c6c75121bfb01">  573</a></span>&#160;<a class="code" href="class_qwt_point_mapper.html#aba6206c8750314c543f0e3b771ae1641">QwtPointMapper::TransformationFlags</a> <a class="code" href="class_qwt_point_mapper.html#a3bed903e8aeaebd8153c6c75121bfb01">QwtPointMapper::flags</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00574"></a><span class="lineno">  574</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00575"></a><span class="lineno">  575</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;flags;</div>
<div class="line"><a name="l00576"></a><span class="lineno">  576</span>&#160;}</div>
<div class="line"><a name="l00577"></a><span class="lineno">  577</span>&#160; </div>
<div class="line"><a name="l00586"></a><span class="lineno"><a class="line" href="class_qwt_point_mapper.html#a6e03e14718d3d66a0f6a02fec7fcaeed">  586</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_point_mapper.html#a6e03e14718d3d66a0f6a02fec7fcaeed">QwtPointMapper::setFlag</a>( <a class="code" href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23">TransformationFlag</a> flag, <span class="keywordtype">bool</span> on )</div>
<div class="line"><a name="l00587"></a><span class="lineno">  587</span>&#160;{</div>
<div class="line"><a name="l00588"></a><span class="lineno">  588</span>&#160;    <span class="keywordflow">if</span> ( on )</div>
<div class="line"><a name="l00589"></a><span class="lineno">  589</span>&#160;        m_data-&gt;flags |= flag;</div>
<div class="line"><a name="l00590"></a><span class="lineno">  590</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00591"></a><span class="lineno">  591</span>&#160;        m_data-&gt;flags &amp;= ~flag;</div>
<div class="line"><a name="l00592"></a><span class="lineno">  592</span>&#160;}</div>
<div class="line"><a name="l00593"></a><span class="lineno">  593</span>&#160; </div>
<div class="line"><a name="l00599"></a><span class="lineno"><a class="line" href="class_qwt_point_mapper.html#a5083f71473fd88e23363a587d84779f3">  599</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="class_qwt_point_mapper.html#a5083f71473fd88e23363a587d84779f3">QwtPointMapper::testFlag</a>( <a class="code" href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23">TransformationFlag</a> flag )<span class="keyword"> const</span></div>
<div class="line"><a name="l00600"></a><span class="lineno">  600</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00601"></a><span class="lineno">  601</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;flags &amp; flag;</div>
<div class="line"><a name="l00602"></a><span class="lineno">  602</span>&#160;}</div>
<div class="line"><a name="l00603"></a><span class="lineno">  603</span>&#160; </div>
<div class="line"><a name="l00612"></a><span class="lineno"><a class="line" href="class_qwt_point_mapper.html#a03910571df91575456e98134f6543650">  612</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_qwt_point_mapper.html#a03910571df91575456e98134f6543650">QwtPointMapper::setBoundingRect</a>( <span class="keyword">const</span> QRectF&amp; rect )</div>
<div class="line"><a name="l00613"></a><span class="lineno">  613</span>&#160;{</div>
<div class="line"><a name="l00614"></a><span class="lineno">  614</span>&#160;    m_data-&gt;boundingRect = rect;</div>
<div class="line"><a name="l00615"></a><span class="lineno">  615</span>&#160;}</div>
<div class="line"><a name="l00616"></a><span class="lineno">  616</span>&#160; </div>
<div class="line"><a name="l00621"></a><span class="lineno"><a class="line" href="class_qwt_point_mapper.html#a22846085780856a6ca36776d387d5b21">  621</a></span>&#160;QRectF <a class="code" href="class_qwt_point_mapper.html#a22846085780856a6ca36776d387d5b21">QwtPointMapper::boundingRect</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00622"></a><span class="lineno">  622</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00623"></a><span class="lineno">  623</span>&#160;    <span class="keywordflow">return</span> m_data-&gt;boundingRect;</div>
<div class="line"><a name="l00624"></a><span class="lineno">  624</span>&#160;}</div>
<div class="line"><a name="l00625"></a><span class="lineno">  625</span>&#160; </div>
<div class="line"><a name="l00647"></a><span class="lineno"><a class="line" href="class_qwt_point_mapper.html#a394341ccba09dd293dddc7bb4f599891">  647</a></span>&#160;QPolygonF <a class="code" href="class_qwt_point_mapper.html#a394341ccba09dd293dddc7bb4f599891">QwtPointMapper::toPolygonF</a>(</div>
<div class="line"><a name="l00648"></a><span class="lineno">  648</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00649"></a><span class="lineno">  649</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series, <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to )<span class="keyword"> const</span></div>
<div class="line"><a name="l00650"></a><span class="lineno">  650</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00651"></a><span class="lineno">  651</span>&#160;    QPolygonF polyline;</div>
<div class="line"><a name="l00652"></a><span class="lineno">  652</span>&#160; </div>
<div class="line"><a name="l00653"></a><span class="lineno">  653</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;flags &amp; <a class="code" href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23a0e367a1519b0005cad8bb324854cc8e3">RoundPoints</a> )</div>
<div class="line"><a name="l00654"></a><span class="lineno">  654</span>&#160;    {</div>
<div class="line"><a name="l00655"></a><span class="lineno">  655</span>&#160;        <span class="keywordflow">if</span> ( m_data-&gt;flags &amp; <a class="code" href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23a7708d7fa581149d1a443f0eaf7066b06">WeedOutIntermediatePoints</a> )</div>
<div class="line"><a name="l00656"></a><span class="lineno">  656</span>&#160;        {</div>
<div class="line"><a name="l00657"></a><span class="lineno">  657</span>&#160;            polyline = qwtMapPointsQuad&lt; QPolygonF, QPointF &gt;(</div>
<div class="line"><a name="l00658"></a><span class="lineno">  658</span>&#160;                xMap, yMap, series, from, to );</div>
<div class="line"><a name="l00659"></a><span class="lineno">  659</span>&#160;        }</div>
<div class="line"><a name="l00660"></a><span class="lineno">  660</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( m_data-&gt;flags &amp; <a class="code" href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23a288f41a8e4d53c895f7bffaaa9b5d9e4">WeedOutPoints</a> )</div>
<div class="line"><a name="l00661"></a><span class="lineno">  661</span>&#160;        {</div>
<div class="line"><a name="l00662"></a><span class="lineno">  662</span>&#160;            polyline = qwtToPolylineFilteredF(</div>
<div class="line"><a name="l00663"></a><span class="lineno">  663</span>&#160;                xMap, yMap, series, from, to, QwtRoundF() );</div>
<div class="line"><a name="l00664"></a><span class="lineno">  664</span>&#160;        }</div>
<div class="line"><a name="l00665"></a><span class="lineno">  665</span>&#160;        <span class="keywordflow">else</span></div>
<div class="line"><a name="l00666"></a><span class="lineno">  666</span>&#160;        {</div>
<div class="line"><a name="l00667"></a><span class="lineno">  667</span>&#160;            polyline = qwtToPointsF( qwtInvalidRect,</div>
<div class="line"><a name="l00668"></a><span class="lineno">  668</span>&#160;                xMap, yMap, series, from, to, QwtRoundF() );</div>
<div class="line"><a name="l00669"></a><span class="lineno">  669</span>&#160;        }</div>
<div class="line"><a name="l00670"></a><span class="lineno">  670</span>&#160;    }</div>
<div class="line"><a name="l00671"></a><span class="lineno">  671</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00672"></a><span class="lineno">  672</span>&#160;    {</div>
<div class="line"><a name="l00673"></a><span class="lineno">  673</span>&#160;        <span class="keywordflow">if</span> ( m_data-&gt;flags &amp; <a class="code" href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23a288f41a8e4d53c895f7bffaaa9b5d9e4">WeedOutPoints</a> )</div>
<div class="line"><a name="l00674"></a><span class="lineno">  674</span>&#160;        {</div>
<div class="line"><a name="l00675"></a><span class="lineno">  675</span>&#160;            polyline = qwtToPolylineFilteredF(</div>
<div class="line"><a name="l00676"></a><span class="lineno">  676</span>&#160;                xMap, yMap, series, from, to, QwtNoRoundF() );</div>
<div class="line"><a name="l00677"></a><span class="lineno">  677</span>&#160;        }</div>
<div class="line"><a name="l00678"></a><span class="lineno">  678</span>&#160;        <span class="keywordflow">else</span></div>
<div class="line"><a name="l00679"></a><span class="lineno">  679</span>&#160;        {</div>
<div class="line"><a name="l00680"></a><span class="lineno">  680</span>&#160;            polyline = qwtToPointsF( qwtInvalidRect,</div>
<div class="line"><a name="l00681"></a><span class="lineno">  681</span>&#160;                xMap, yMap, series, from, to, QwtNoRoundF() );</div>
<div class="line"><a name="l00682"></a><span class="lineno">  682</span>&#160;        }</div>
<div class="line"><a name="l00683"></a><span class="lineno">  683</span>&#160;    }</div>
<div class="line"><a name="l00684"></a><span class="lineno">  684</span>&#160; </div>
<div class="line"><a name="l00685"></a><span class="lineno">  685</span>&#160;    <span class="keywordflow">return</span> polyline;</div>
<div class="line"><a name="l00686"></a><span class="lineno">  686</span>&#160;}</div>
<div class="line"><a name="l00687"></a><span class="lineno">  687</span>&#160; </div>
<div class="line"><a name="l00702"></a><span class="lineno"><a class="line" href="class_qwt_point_mapper.html#ab1dde54ddb1c522e17e28ff47fbaa82a">  702</a></span>&#160;QPolygon <a class="code" href="class_qwt_point_mapper.html#ab1dde54ddb1c522e17e28ff47fbaa82a">QwtPointMapper::toPolygon</a>(</div>
<div class="line"><a name="l00703"></a><span class="lineno">  703</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00704"></a><span class="lineno">  704</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series, <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to )<span class="keyword"> const</span></div>
<div class="line"><a name="l00705"></a><span class="lineno">  705</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00706"></a><span class="lineno">  706</span>&#160;    QPolygon polyline;</div>
<div class="line"><a name="l00707"></a><span class="lineno">  707</span>&#160; </div>
<div class="line"><a name="l00708"></a><span class="lineno">  708</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;flags &amp; <a class="code" href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23a7708d7fa581149d1a443f0eaf7066b06">WeedOutIntermediatePoints</a> )</div>
<div class="line"><a name="l00709"></a><span class="lineno">  709</span>&#160;    {</div>
<div class="line"><a name="l00710"></a><span class="lineno">  710</span>&#160;        <span class="comment">// TODO WeedOutIntermediatePointsY ...</span></div>
<div class="line"><a name="l00711"></a><span class="lineno">  711</span>&#160;        polyline = qwtMapPointsQuad&lt; QPolygon, QPoint &gt;(</div>
<div class="line"><a name="l00712"></a><span class="lineno">  712</span>&#160;            xMap, yMap, series, from, to );</div>
<div class="line"><a name="l00713"></a><span class="lineno">  713</span>&#160;    }</div>
<div class="line"><a name="l00714"></a><span class="lineno">  714</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> ( m_data-&gt;flags &amp; <a class="code" href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23a288f41a8e4d53c895f7bffaaa9b5d9e4">WeedOutPoints</a> )</div>
<div class="line"><a name="l00715"></a><span class="lineno">  715</span>&#160;    {</div>
<div class="line"><a name="l00716"></a><span class="lineno">  716</span>&#160;        polyline = qwtToPolylineFilteredI(</div>
<div class="line"><a name="l00717"></a><span class="lineno">  717</span>&#160;            xMap, yMap, series, from, to );</div>
<div class="line"><a name="l00718"></a><span class="lineno">  718</span>&#160;    }</div>
<div class="line"><a name="l00719"></a><span class="lineno">  719</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00720"></a><span class="lineno">  720</span>&#160;    {</div>
<div class="line"><a name="l00721"></a><span class="lineno">  721</span>&#160;        polyline = qwtToPointsI(</div>
<div class="line"><a name="l00722"></a><span class="lineno">  722</span>&#160;            qwtInvalidRect, xMap, yMap, series, from, to );</div>
<div class="line"><a name="l00723"></a><span class="lineno">  723</span>&#160;    }</div>
<div class="line"><a name="l00724"></a><span class="lineno">  724</span>&#160; </div>
<div class="line"><a name="l00725"></a><span class="lineno">  725</span>&#160;    <span class="keywordflow">return</span> polyline;</div>
<div class="line"><a name="l00726"></a><span class="lineno">  726</span>&#160;}</div>
<div class="line"><a name="l00727"></a><span class="lineno">  727</span>&#160; </div>
<div class="line"><a name="l00759"></a><span class="lineno"><a class="line" href="class_qwt_point_mapper.html#a69d9ab6398de007d851e7d386ec5dfb7">  759</a></span>&#160;QPolygonF <a class="code" href="class_qwt_point_mapper.html#a69d9ab6398de007d851e7d386ec5dfb7">QwtPointMapper::toPointsF</a>(</div>
<div class="line"><a name="l00760"></a><span class="lineno">  760</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00761"></a><span class="lineno">  761</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series, <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to )<span class="keyword"> const</span></div>
<div class="line"><a name="l00762"></a><span class="lineno">  762</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00763"></a><span class="lineno">  763</span>&#160;    QPolygonF points;</div>
<div class="line"><a name="l00764"></a><span class="lineno">  764</span>&#160; </div>
<div class="line"><a name="l00765"></a><span class="lineno">  765</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;flags &amp; <a class="code" href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23a288f41a8e4d53c895f7bffaaa9b5d9e4">WeedOutPoints</a> )</div>
<div class="line"><a name="l00766"></a><span class="lineno">  766</span>&#160;    {</div>
<div class="line"><a name="l00767"></a><span class="lineno">  767</span>&#160;        <span class="keywordflow">if</span> ( m_data-&gt;flags &amp; <a class="code" href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23a0e367a1519b0005cad8bb324854cc8e3">RoundPoints</a> )</div>
<div class="line"><a name="l00768"></a><span class="lineno">  768</span>&#160;        {</div>
<div class="line"><a name="l00769"></a><span class="lineno">  769</span>&#160;            <span class="keywordflow">if</span> ( m_data-&gt;boundingRect.isValid() )</div>
<div class="line"><a name="l00770"></a><span class="lineno">  770</span>&#160;            {</div>
<div class="line"><a name="l00771"></a><span class="lineno">  771</span>&#160;                points = qwtToPointsFilteredF( m_data-&gt;boundingRect,</div>
<div class="line"><a name="l00772"></a><span class="lineno">  772</span>&#160;                    xMap, yMap, series, from, to );</div>
<div class="line"><a name="l00773"></a><span class="lineno">  773</span>&#160;            }</div>
<div class="line"><a name="l00774"></a><span class="lineno">  774</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00775"></a><span class="lineno">  775</span>&#160;            {</div>
<div class="line"><a name="l00776"></a><span class="lineno">  776</span>&#160;                <span class="comment">// without a bounding rectangle all we can</span></div>
<div class="line"><a name="l00777"></a><span class="lineno">  777</span>&#160;                <span class="comment">// do is to filter out duplicates of</span></div>
<div class="line"><a name="l00778"></a><span class="lineno">  778</span>&#160;                <span class="comment">// consecutive points</span></div>
<div class="line"><a name="l00779"></a><span class="lineno">  779</span>&#160; </div>
<div class="line"><a name="l00780"></a><span class="lineno">  780</span>&#160;                points = qwtToPolylineFilteredF(</div>
<div class="line"><a name="l00781"></a><span class="lineno">  781</span>&#160;                    xMap, yMap, series, from, to, QwtRoundF() );</div>
<div class="line"><a name="l00782"></a><span class="lineno">  782</span>&#160;            }</div>
<div class="line"><a name="l00783"></a><span class="lineno">  783</span>&#160;        }</div>
<div class="line"><a name="l00784"></a><span class="lineno">  784</span>&#160;        <span class="keywordflow">else</span></div>
<div class="line"><a name="l00785"></a><span class="lineno">  785</span>&#160;        {</div>
<div class="line"><a name="l00786"></a><span class="lineno">  786</span>&#160;            <span class="comment">// when rounding is not allowed we can&#39;t use</span></div>
<div class="line"><a name="l00787"></a><span class="lineno">  787</span>&#160;            <span class="comment">// qwtToPointsFilteredF</span></div>
<div class="line"><a name="l00788"></a><span class="lineno">  788</span>&#160; </div>
<div class="line"><a name="l00789"></a><span class="lineno">  789</span>&#160;            points = qwtToPolylineFilteredF(</div>
<div class="line"><a name="l00790"></a><span class="lineno">  790</span>&#160;                xMap, yMap, series, from, to, QwtNoRoundF() );</div>
<div class="line"><a name="l00791"></a><span class="lineno">  791</span>&#160;        }</div>
<div class="line"><a name="l00792"></a><span class="lineno">  792</span>&#160;    }</div>
<div class="line"><a name="l00793"></a><span class="lineno">  793</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00794"></a><span class="lineno">  794</span>&#160;    {</div>
<div class="line"><a name="l00795"></a><span class="lineno">  795</span>&#160;        <span class="keywordflow">if</span> ( m_data-&gt;flags &amp; <a class="code" href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23a0e367a1519b0005cad8bb324854cc8e3">RoundPoints</a> )</div>
<div class="line"><a name="l00796"></a><span class="lineno">  796</span>&#160;        {</div>
<div class="line"><a name="l00797"></a><span class="lineno">  797</span>&#160;            points = qwtToPointsF( m_data-&gt;boundingRect,</div>
<div class="line"><a name="l00798"></a><span class="lineno">  798</span>&#160;                xMap, yMap, series, from, to, QwtRoundF() );</div>
<div class="line"><a name="l00799"></a><span class="lineno">  799</span>&#160;        }</div>
<div class="line"><a name="l00800"></a><span class="lineno">  800</span>&#160;        <span class="keywordflow">else</span></div>
<div class="line"><a name="l00801"></a><span class="lineno">  801</span>&#160;        {</div>
<div class="line"><a name="l00802"></a><span class="lineno">  802</span>&#160;            points = qwtToPointsF( m_data-&gt;boundingRect,</div>
<div class="line"><a name="l00803"></a><span class="lineno">  803</span>&#160;                xMap, yMap, series, from, to, QwtNoRoundF() );</div>
<div class="line"><a name="l00804"></a><span class="lineno">  804</span>&#160;        }</div>
<div class="line"><a name="l00805"></a><span class="lineno">  805</span>&#160;    }</div>
<div class="line"><a name="l00806"></a><span class="lineno">  806</span>&#160; </div>
<div class="line"><a name="l00807"></a><span class="lineno">  807</span>&#160;    <span class="keywordflow">return</span> points;</div>
<div class="line"><a name="l00808"></a><span class="lineno">  808</span>&#160;}</div>
<div class="line"><a name="l00809"></a><span class="lineno">  809</span>&#160; </div>
<div class="line"><a name="l00833"></a><span class="lineno"><a class="line" href="class_qwt_point_mapper.html#ad580fc22b1bfcc353e711712cad15ae0">  833</a></span>&#160;QPolygon <a class="code" href="class_qwt_point_mapper.html#ad580fc22b1bfcc353e711712cad15ae0">QwtPointMapper::toPoints</a>(</div>
<div class="line"><a name="l00834"></a><span class="lineno">  834</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00835"></a><span class="lineno">  835</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series, <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to )<span class="keyword"> const</span></div>
<div class="line"><a name="l00836"></a><span class="lineno">  836</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00837"></a><span class="lineno">  837</span>&#160;    QPolygon points;</div>
<div class="line"><a name="l00838"></a><span class="lineno">  838</span>&#160; </div>
<div class="line"><a name="l00839"></a><span class="lineno">  839</span>&#160;    <span class="keywordflow">if</span> ( m_data-&gt;flags &amp; <a class="code" href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23a288f41a8e4d53c895f7bffaaa9b5d9e4">WeedOutPoints</a> )</div>
<div class="line"><a name="l00840"></a><span class="lineno">  840</span>&#160;    {</div>
<div class="line"><a name="l00841"></a><span class="lineno">  841</span>&#160;        <span class="keywordflow">if</span> ( m_data-&gt;boundingRect.isValid() )</div>
<div class="line"><a name="l00842"></a><span class="lineno">  842</span>&#160;        {</div>
<div class="line"><a name="l00843"></a><span class="lineno">  843</span>&#160;            points = qwtToPointsFilteredI( m_data-&gt;boundingRect,</div>
<div class="line"><a name="l00844"></a><span class="lineno">  844</span>&#160;                xMap, yMap, series, from, to );</div>
<div class="line"><a name="l00845"></a><span class="lineno">  845</span>&#160;        }</div>
<div class="line"><a name="l00846"></a><span class="lineno">  846</span>&#160;        <span class="keywordflow">else</span></div>
<div class="line"><a name="l00847"></a><span class="lineno">  847</span>&#160;        {</div>
<div class="line"><a name="l00848"></a><span class="lineno">  848</span>&#160;            <span class="comment">// when we don&#39;t have the bounding rectangle all</span></div>
<div class="line"><a name="l00849"></a><span class="lineno">  849</span>&#160;            <span class="comment">// we can do is to filter out consecutive duplicates</span></div>
<div class="line"><a name="l00850"></a><span class="lineno">  850</span>&#160; </div>
<div class="line"><a name="l00851"></a><span class="lineno">  851</span>&#160;            points = qwtToPolylineFilteredI(</div>
<div class="line"><a name="l00852"></a><span class="lineno">  852</span>&#160;                xMap, yMap, series, from, to );</div>
<div class="line"><a name="l00853"></a><span class="lineno">  853</span>&#160;        }</div>
<div class="line"><a name="l00854"></a><span class="lineno">  854</span>&#160;    }</div>
<div class="line"><a name="l00855"></a><span class="lineno">  855</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00856"></a><span class="lineno">  856</span>&#160;    {</div>
<div class="line"><a name="l00857"></a><span class="lineno">  857</span>&#160;        points = qwtToPointsI(</div>
<div class="line"><a name="l00858"></a><span class="lineno">  858</span>&#160;            m_data-&gt;boundingRect, xMap, yMap, series, from, to );</div>
<div class="line"><a name="l00859"></a><span class="lineno">  859</span>&#160;    }</div>
<div class="line"><a name="l00860"></a><span class="lineno">  860</span>&#160; </div>
<div class="line"><a name="l00861"></a><span class="lineno">  861</span>&#160;    <span class="keywordflow">return</span> points;</div>
<div class="line"><a name="l00862"></a><span class="lineno">  862</span>&#160;}</div>
<div class="line"><a name="l00863"></a><span class="lineno">  863</span>&#160; </div>
<div class="line"><a name="l00864"></a><span class="lineno">  864</span>&#160; </div>
<div class="line"><a name="l00883"></a><span class="lineno"><a class="line" href="class_qwt_point_mapper.html#a48feb94a44632dafc78405e7a42ee65e">  883</a></span>&#160;QImage <a class="code" href="class_qwt_point_mapper.html#a48feb94a44632dafc78405e7a42ee65e">QwtPointMapper::toImage</a>(</div>
<div class="line"><a name="l00884"></a><span class="lineno">  884</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&amp; yMap,</div>
<div class="line"><a name="l00885"></a><span class="lineno">  885</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a>* series, <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to,</div>
<div class="line"><a name="l00886"></a><span class="lineno">  886</span>&#160;    <span class="keyword">const</span> QPen&amp; pen, <span class="keywordtype">bool</span> antialiased, uint numThreads )<span class="keyword"> const</span></div>
<div class="line"><a name="l00887"></a><span class="lineno">  887</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00888"></a><span class="lineno">  888</span>&#160;    Q_UNUSED( antialiased )</div>
<div class="line"><a name="l00889"></a><span class="lineno">  889</span>&#160; </div>
<div class="line"><a name="l00890"></a><span class="lineno">  890</span>&#160;<span class="preprocessor">#if QWT_USE_THREADS</span></div>
<div class="line"><a name="l00891"></a><span class="lineno">  891</span>&#160;    <span class="keywordflow">if</span> ( numThreads == 0 )</div>
<div class="line"><a name="l00892"></a><span class="lineno">  892</span>&#160;        numThreads = QThread::idealThreadCount();</div>
<div class="line"><a name="l00893"></a><span class="lineno">  893</span>&#160; </div>
<div class="line"><a name="l00894"></a><span class="lineno">  894</span>&#160;    <span class="keywordflow">if</span> ( numThreads &lt;= 0 )</div>
<div class="line"><a name="l00895"></a><span class="lineno">  895</span>&#160;        numThreads = 1;</div>
<div class="line"><a name="l00896"></a><span class="lineno">  896</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00897"></a><span class="lineno">  897</span>&#160;    Q_UNUSED( numThreads )</div>
<div class="line"><a name="l00898"></a><span class="lineno">  898</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00899"></a><span class="lineno">  899</span>&#160; </div>
<div class="line"><a name="l00900"></a><span class="lineno">  900</span>&#160;    <span class="comment">// a very special optimization for scatter plots</span></div>
<div class="line"><a name="l00901"></a><span class="lineno">  901</span>&#160;    <span class="comment">// where every sample is mapped to one pixel only.</span></div>
<div class="line"><a name="l00902"></a><span class="lineno">  902</span>&#160; </div>
<div class="line"><a name="l00903"></a><span class="lineno">  903</span>&#160;    <span class="keyword">const</span> QRect rect = m_data-&gt;boundingRect.toAlignedRect();</div>
<div class="line"><a name="l00904"></a><span class="lineno">  904</span>&#160; </div>
<div class="line"><a name="l00905"></a><span class="lineno">  905</span>&#160;    QImage image( rect.size(), QImage::Format_ARGB32 );</div>
<div class="line"><a name="l00906"></a><span class="lineno">  906</span>&#160;    image.fill( Qt::transparent );</div>
<div class="line"><a name="l00907"></a><span class="lineno">  907</span>&#160; </div>
<div class="line"><a name="l00908"></a><span class="lineno">  908</span>&#160;    <span class="keywordflow">if</span> ( pen.width() &lt;= 1 &amp;&amp; pen.color().alpha() == 255 )</div>
<div class="line"><a name="l00909"></a><span class="lineno">  909</span>&#160;    {</div>
<div class="line"><a name="l00910"></a><span class="lineno">  910</span>&#160;        QwtDotsCommand command;</div>
<div class="line"><a name="l00911"></a><span class="lineno">  911</span>&#160;        command.series = series;</div>
<div class="line"><a name="l00912"></a><span class="lineno">  912</span>&#160;        command.rgb = pen.color().rgba();</div>
<div class="line"><a name="l00913"></a><span class="lineno">  913</span>&#160; </div>
<div class="line"><a name="l00914"></a><span class="lineno">  914</span>&#160;<span class="preprocessor">#if QWT_USE_THREADS</span></div>
<div class="line"><a name="l00915"></a><span class="lineno">  915</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> numPoints = ( to - from + 1 ) / numThreads;</div>
<div class="line"><a name="l00916"></a><span class="lineno">  916</span>&#160; </div>
<div class="line"><a name="l00917"></a><span class="lineno">  917</span>&#160;        <a class="code" href="class_q_list.html">QList&lt; QFuture&lt; void &gt;</a> &gt; futures;</div>
<div class="line"><a name="l00918"></a><span class="lineno">  918</span>&#160;        <span class="keywordflow">for</span> ( uint i = 0; i &lt; numThreads; i++ )</div>
<div class="line"><a name="l00919"></a><span class="lineno">  919</span>&#160;        {</div>
<div class="line"><a name="l00920"></a><span class="lineno">  920</span>&#160;            <span class="keyword">const</span> QPoint pos = rect.topLeft();</div>
<div class="line"><a name="l00921"></a><span class="lineno">  921</span>&#160; </div>
<div class="line"><a name="l00922"></a><span class="lineno">  922</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> index0 = from + i * numPoints;</div>
<div class="line"><a name="l00923"></a><span class="lineno">  923</span>&#160;            <span class="keywordflow">if</span> ( i == numThreads - 1 )</div>
<div class="line"><a name="l00924"></a><span class="lineno">  924</span>&#160;            {</div>
<div class="line"><a name="l00925"></a><span class="lineno">  925</span>&#160;                command.from = index0;</div>
<div class="line"><a name="l00926"></a><span class="lineno">  926</span>&#160;                command.to = to;</div>
<div class="line"><a name="l00927"></a><span class="lineno">  927</span>&#160; </div>
<div class="line"><a name="l00928"></a><span class="lineno">  928</span>&#160;                qwtRenderDots( xMap, yMap, command, pos, &amp;image );</div>
<div class="line"><a name="l00929"></a><span class="lineno">  929</span>&#160;            }</div>
<div class="line"><a name="l00930"></a><span class="lineno">  930</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00931"></a><span class="lineno">  931</span>&#160;            {</div>
<div class="line"><a name="l00932"></a><span class="lineno">  932</span>&#160;                command.from = index0;</div>
<div class="line"><a name="l00933"></a><span class="lineno">  933</span>&#160;                command.to = index0 + numPoints - 1;</div>
<div class="line"><a name="l00934"></a><span class="lineno">  934</span>&#160; </div>
<div class="line"><a name="l00935"></a><span class="lineno">  935</span>&#160;                futures += QtConcurrent::run( &amp;qwtRenderDots,</div>
<div class="line"><a name="l00936"></a><span class="lineno">  936</span>&#160;                    xMap, yMap, command, pos, &amp;image );</div>
<div class="line"><a name="l00937"></a><span class="lineno">  937</span>&#160;            }</div>
<div class="line"><a name="l00938"></a><span class="lineno">  938</span>&#160;        }</div>
<div class="line"><a name="l00939"></a><span class="lineno">  939</span>&#160;        <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i &lt; futures.size(); i++ )</div>
<div class="line"><a name="l00940"></a><span class="lineno">  940</span>&#160;            futures[i].waitForFinished();</div>
<div class="line"><a name="l00941"></a><span class="lineno">  941</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00942"></a><span class="lineno">  942</span>&#160;        command.from = from;</div>
<div class="line"><a name="l00943"></a><span class="lineno">  943</span>&#160;        command.to = to;</div>
<div class="line"><a name="l00944"></a><span class="lineno">  944</span>&#160; </div>
<div class="line"><a name="l00945"></a><span class="lineno">  945</span>&#160;        qwtRenderDots( xMap, yMap, command, rect.topLeft(), &amp;image );</div>
<div class="line"><a name="l00946"></a><span class="lineno">  946</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00947"></a><span class="lineno">  947</span>&#160;    }</div>
<div class="line"><a name="l00948"></a><span class="lineno">  948</span>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00949"></a><span class="lineno">  949</span>&#160;    {</div>
<div class="line"><a name="l00950"></a><span class="lineno">  950</span>&#160;        <span class="comment">// fallback implementation: to be replaced later by</span></div>
<div class="line"><a name="l00951"></a><span class="lineno">  951</span>&#160;        <span class="comment">// setting the pixels of the image like above, TODO ...</span></div>
<div class="line"><a name="l00952"></a><span class="lineno">  952</span>&#160; </div>
<div class="line"><a name="l00953"></a><span class="lineno">  953</span>&#160;        QPainter painter( &amp;image );</div>
<div class="line"><a name="l00954"></a><span class="lineno">  954</span>&#160;        painter.setPen( pen );</div>
<div class="line"><a name="l00955"></a><span class="lineno">  955</span>&#160;        painter.setRenderHint( QPainter::Antialiasing, antialiased );</div>
<div class="line"><a name="l00956"></a><span class="lineno">  956</span>&#160; </div>
<div class="line"><a name="l00957"></a><span class="lineno">  957</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">int</span> chunkSize = 1000;</div>
<div class="line"><a name="l00958"></a><span class="lineno">  958</span>&#160;        <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = from; i &lt;= to; i += chunkSize )</div>
<div class="line"><a name="l00959"></a><span class="lineno">  959</span>&#160;        {</div>
<div class="line"><a name="l00960"></a><span class="lineno">  960</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span> indexTo = qMin( i + chunkSize - 1, to );</div>
<div class="line"><a name="l00961"></a><span class="lineno">  961</span>&#160;            <span class="keyword">const</span> QPolygon points = <a class="code" href="class_qwt_point_mapper.html#ad580fc22b1bfcc353e711712cad15ae0">toPoints</a>(</div>
<div class="line"><a name="l00962"></a><span class="lineno">  962</span>&#160;                xMap, yMap, series, i, indexTo );</div>
<div class="line"><a name="l00963"></a><span class="lineno">  963</span>&#160; </div>
<div class="line"><a name="l00964"></a><span class="lineno">  964</span>&#160;            painter.drawPoints( points );</div>
<div class="line"><a name="l00965"></a><span class="lineno">  965</span>&#160;        }</div>
<div class="line"><a name="l00966"></a><span class="lineno">  966</span>&#160;    }</div>
<div class="line"><a name="l00967"></a><span class="lineno">  967</span>&#160; </div>
<div class="line"><a name="l00968"></a><span class="lineno">  968</span>&#160;    <span class="keywordflow">return</span> image;</div>
<div class="line"><a name="l00969"></a><span class="lineno">  969</span>&#160;}</div>
<div class="ttc" id="aclass_q_list_html"><div class="ttname"><a href="class_q_list.html">QList</a></div><div class="ttdef"><b>Definition:</b> <a href="qwt__abstract__legend_8h_source.html#l00017">qwt_abstract_legend.h:17</a></div></div>
<div class="ttc" id="aclass_qwt_pixel_matrix_html"><div class="ttname"><a href="class_qwt_pixel_matrix.html">QwtPixelMatrix</a></div><div class="ttdoc">A bit field corresponding to the pixels of a rectangle.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__pixel__matrix_8h_source.html#l00024">qwt_pixel_matrix.h:25</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_a03910571df91575456e98134f6543650"><div class="ttname"><a href="class_qwt_point_mapper.html#a03910571df91575456e98134f6543650">QwtPointMapper::setBoundingRect</a></div><div class="ttdeci">void setBoundingRect(const QRectF &amp;)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8cpp_source.html#l00612">qwt_point_mapper.cpp:612</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_a22846085780856a6ca36776d387d5b21"><div class="ttname"><a href="class_qwt_point_mapper.html#a22846085780856a6ca36776d387d5b21">QwtPointMapper::boundingRect</a></div><div class="ttdeci">QRectF boundingRect() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8cpp_source.html#l00621">qwt_point_mapper.cpp:621</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_a394341ccba09dd293dddc7bb4f599891"><div class="ttname"><a href="class_qwt_point_mapper.html#a394341ccba09dd293dddc7bb4f599891">QwtPointMapper::toPolygonF</a></div><div class="ttdeci">QPolygonF toPolygonF(const QwtScaleMap &amp;xMap, const QwtScaleMap &amp;yMap, const QwtSeriesData&lt; QPointF &gt; *series, int from, int to) const</div><div class="ttdoc">Translate a series of points into a QPolygonF.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8cpp_source.html#l00647">qwt_point_mapper.cpp:647</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_a3bed903e8aeaebd8153c6c75121bfb01"><div class="ttname"><a href="class_qwt_point_mapper.html#a3bed903e8aeaebd8153c6c75121bfb01">QwtPointMapper::flags</a></div><div class="ttdeci">TransformationFlags flags() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8cpp_source.html#l00573">qwt_point_mapper.cpp:573</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_a48feb94a44632dafc78405e7a42ee65e"><div class="ttname"><a href="class_qwt_point_mapper.html#a48feb94a44632dafc78405e7a42ee65e">QwtPointMapper::toImage</a></div><div class="ttdeci">QImage toImage(const QwtScaleMap &amp;xMap, const QwtScaleMap &amp;yMap, const QwtSeriesData&lt; QPointF &gt; *series, int from, int to, const QPen &amp;, bool antialiased, uint numThreads) const</div><div class="ttdoc">Translate a series into a QImage.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8cpp_source.html#l00883">qwt_point_mapper.cpp:883</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_a5083f71473fd88e23363a587d84779f3"><div class="ttname"><a href="class_qwt_point_mapper.html#a5083f71473fd88e23363a587d84779f3">QwtPointMapper::testFlag</a></div><div class="ttdeci">bool testFlag(TransformationFlag) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8cpp_source.html#l00599">qwt_point_mapper.cpp:599</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_a69d9ab6398de007d851e7d386ec5dfb7"><div class="ttname"><a href="class_qwt_point_mapper.html#a69d9ab6398de007d851e7d386ec5dfb7">QwtPointMapper::toPointsF</a></div><div class="ttdeci">QPolygonF toPointsF(const QwtScaleMap &amp;xMap, const QwtScaleMap &amp;yMap, const QwtSeriesData&lt; QPointF &gt; *series, int from, int to) const</div><div class="ttdoc">Translate a series into a QPolygonF.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8cpp_source.html#l00759">qwt_point_mapper.cpp:759</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_a6e03e14718d3d66a0f6a02fec7fcaeed"><div class="ttname"><a href="class_qwt_point_mapper.html#a6e03e14718d3d66a0f6a02fec7fcaeed">QwtPointMapper::setFlag</a></div><div class="ttdeci">void setFlag(TransformationFlag, bool on=true)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8cpp_source.html#l00586">qwt_point_mapper.cpp:586</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_a6e5eabb9c1af9b035023376fa2e1c472"><div class="ttname"><a href="class_qwt_point_mapper.html#a6e5eabb9c1af9b035023376fa2e1c472">QwtPointMapper::QwtPointMapper</a></div><div class="ttdeci">QwtPointMapper()</div><div class="ttdoc">Constructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8cpp_source.html#l00547">qwt_point_mapper.cpp:547</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_aabe6a70dae5784e8b67f4527c51e0c09"><div class="ttname"><a href="class_qwt_point_mapper.html#aabe6a70dae5784e8b67f4527c51e0c09">QwtPointMapper::~QwtPointMapper</a></div><div class="ttdeci">~QwtPointMapper()</div><div class="ttdoc">Destructor.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8cpp_source.html#l00553">qwt_point_mapper.cpp:553</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_aafc07ceadb3f311057037ca8680e1c23"><div class="ttname"><a href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23">QwtPointMapper::TransformationFlag</a></div><div class="ttdeci">TransformationFlag</div><div class="ttdoc">Flags affecting the transformation process.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8h_source.html#l00039">qwt_point_mapper.h:40</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_aafc07ceadb3f311057037ca8680e1c23a0e367a1519b0005cad8bb324854cc8e3"><div class="ttname"><a href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23a0e367a1519b0005cad8bb324854cc8e3">QwtPointMapper::RoundPoints</a></div><div class="ttdeci">@ RoundPoints</div><div class="ttdoc">Round points to integer values.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8h_source.html#l00042">qwt_point_mapper.h:42</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_aafc07ceadb3f311057037ca8680e1c23a288f41a8e4d53c895f7bffaaa9b5d9e4"><div class="ttname"><a href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23a288f41a8e4d53c895f7bffaaa9b5d9e4">QwtPointMapper::WeedOutPoints</a></div><div class="ttdeci">@ WeedOutPoints</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8h_source.html#l00048">qwt_point_mapper.h:48</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_aafc07ceadb3f311057037ca8680e1c23a7708d7fa581149d1a443f0eaf7066b06"><div class="ttname"><a href="class_qwt_point_mapper.html#aafc07ceadb3f311057037ca8680e1c23a7708d7fa581149d1a443f0eaf7066b06">QwtPointMapper::WeedOutIntermediatePoints</a></div><div class="ttdeci">@ WeedOutIntermediatePoints</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8h_source.html#l00069">qwt_point_mapper.h:68</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_ab1dde54ddb1c522e17e28ff47fbaa82a"><div class="ttname"><a href="class_qwt_point_mapper.html#ab1dde54ddb1c522e17e28ff47fbaa82a">QwtPointMapper::toPolygon</a></div><div class="ttdeci">QPolygon toPolygon(const QwtScaleMap &amp;xMap, const QwtScaleMap &amp;yMap, const QwtSeriesData&lt; QPointF &gt; *series, int from, int to) const</div><div class="ttdoc">Translate a series of points into a QPolygon.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8cpp_source.html#l00702">qwt_point_mapper.cpp:702</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_ab556bd339cca487f25e2d894c51abe85"><div class="ttname"><a href="class_qwt_point_mapper.html#ab556bd339cca487f25e2d894c51abe85">QwtPointMapper::setFlags</a></div><div class="ttdeci">void setFlags(TransformationFlags)</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8cpp_source.html#l00564">qwt_point_mapper.cpp:564</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_aba6206c8750314c543f0e3b771ae1641"><div class="ttname"><a href="class_qwt_point_mapper.html#aba6206c8750314c543f0e3b771ae1641">QwtPointMapper::TransformationFlags</a></div><div class="ttdeci">QFlags&lt; TransformationFlag &gt; TransformationFlags</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8h_source.html#l00071">qwt_point_mapper.h:71</a></div></div>
<div class="ttc" id="aclass_qwt_point_mapper_html_ad580fc22b1bfcc353e711712cad15ae0"><div class="ttname"><a href="class_qwt_point_mapper.html#ad580fc22b1bfcc353e711712cad15ae0">QwtPointMapper::toPoints</a></div><div class="ttdeci">QPolygon toPoints(const QwtScaleMap &amp;xMap, const QwtScaleMap &amp;yMap, const QwtSeriesData&lt; QPointF &gt; *series, int from, int to) const</div><div class="ttdoc">Translate a series of points into a QPolygon.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__point__mapper_8cpp_source.html#l00833">qwt_point_mapper.cpp:833</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html"><div class="ttname"><a href="class_qwt_scale_map.html">QwtScaleMap</a></div><div class="ttdoc">A scale map.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00026">qwt_scale_map.h:27</a></div></div>
<div class="ttc" id="aclass_qwt_scale_map_html_a504f1627e0e02ddac03d2ce46507b865"><div class="ttname"><a href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">QwtScaleMap::transform</a></div><div class="ttdeci">double transform(double s) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00137">qwt_scale_map.h:137</a></div></div>
<div class="ttc" id="aclass_qwt_series_data_html"><div class="ttname"><a href="class_qwt_series_data.html">QwtSeriesData&lt; QPointF &gt;</a></div></div>
<div class="ttc" id="aclass_qwt_series_data_html_ae8650d16c07c58f01897ab48658a3266"><div class="ttname"><a href="class_qwt_series_data.html#ae8650d16c07c58f01897ab48658a3266">QwtSeriesData::sample</a></div><div class="ttdeci">virtual T sample(size_t i) const =0</div></div>
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